﻿<blockquote class="extDef">NOTE&nbsp; Definition according to ISO/CD 10303-42:1992<br>
This function checks the dimensionality of various subtypes of curve. It returns the
dimensionality of the basic points and directions used at the instance
of curve.</blockquote>

<blockquote class="note">NOTE&nbsp; This specification allows for mixed dimensionality within the same
geometric representation context.</blockquote>

<blockquote class="history">HISTORY&nbsp; New function in IFC2x</blockquote>